Under the following conditions, data that is written to a removable media storage device may be deleted from the device:
- Your Windows XP-based computer hibernates while a removable media storage device is inserted. Removable media storage devices may include Compact Flash, Memory Stick, SmartMedia, or Secure Digital memory devices.
- You remove the media, and then add data to it.
- You reinsert the media into the computer, and then resume from hibernation.
The data that was written to the device while the computer was hibernating may be missing when you insert the media into another computer or device (such as a digital camera).
This problem may occur when Windows caches the original data on the device while the computer is hibernating. Windows restores this original data back to the device when the computer resumes from hibernation.
To resolve this problem, obtain the latest service pack for Windows XP. For additional information, click the following article number to view the article in the
Microsoft Knowledge Base:
How to Obtain the Latest Windows XP Service Pack
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix. Note
If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note
The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
The English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone
tab in the Date and Time tool in Control Panel.
Date Time Version Size File name
01-Aug-2002 23:36 5.1.2600.51 44,416 Classpnp.sys
To work around this problem, use either of the following methods:
- Resume the computer from hibernation before you reinsert the media.
- After you resume from hibernation, use the Hotplug tool on the right side of the taskbar to stop the removable-media device, eject the media, and then reinsert the media.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows XP Service Pack 1.
For additional information about this problem with Microsoft Windows 2000, click the article number below
to view the article in the Microsoft Knowledge Base:
Data Added to Removable Media During Hibernation May Be Lost When You Resume Windows 2000
for other considerations.